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If you have an 8800 you may be needing S-100 boards. I have a supply of new S-100 prototype boards that I would be happy to sell. I have two styles. The best one has traces on the front and back for power and ground busses and a place for an onboard regulator. The pattern is setup for DIP ICs. They are full-size boards and have gold contacts. I believe the board material is FR4 and they are tinned on both sides. These are first-rate boards that I have seen for up to $50. I am asking $20 for each board. That price includes shipping in North America. The other board style has the gold fingers but the rest of the board is just drilled FR4. It is for wire wrapping. I'm asking $10 for these. I also have a supply of various S-100 backplane boards that accommodate 6, 12, and 22 S-100 cards. Please send me an email at ibmarty@gmail.com if your interested, or if you want to see pictures. Please put the word ALTAIR in the subject line. Thank you. Don't forget to look at the attached pictures.